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Campbell AP Biology--CHAPTER 3 Flashcards

terms along with vital information covering Campbell's 6th edition Biology textbook

Terms : Hide Images
7510768057polar covalenttype of bond in water? Oxygen is more electronegative than hydrogen and the electrons of the polar bonds spend more time near oxygen thus, making oxygen more negativity charged and hydrogen more positively charged0
7510768058Cohesionholding a substance together1
7510768059Adhesionclinging of a substance to another2
7510768060Capillary actionthe attraction of the surface of a liquid to the surface of a solid, which causes the liquid to rise or fall Capillary action is the ability of a liquid to flow in narrow spaces without assistance. It occurs because of intermolecular forces between the liquid and surrounding solid surfaces. If the diameter of the tube is sufficiently small, then the combination of surface tension (which is caused by cohesion within the liquid) and adhesive forces between the liquid and container wall act to propel the liquid. When adhesion > cohesion, capillary action occurs.3
7510768061Surface TensionA measure of how difficult it is to break/stretch a surface4
7510768062Kinetic Energyenergy of motion5
7510768063Heattotal kinetic energy due to molecular motion6
7510768064Calorieamount of heat it takes to move 1 gram of substance 1 degree Celsius higher7
7510768065Temperatureintensity of heat due to average kinetic energy8
7510768066Specific heatamount of heat needed to be absorbed /lost to change the temperature by 1 degree Celsius water has a high _____.9
7510768067water1 calorie/1 gram/I degree Celsius is the specific heat of ____.10
7510768068Evaporative coolingremains of a liquid cool down11
7510768069vaporizationamount of heat needed to turn liquid into gas12
7510768070evaporationprocess of liquid becoming gas13
7510768071How does the density of water contribute to aquatic life?if ice sank, ponds/oceans/lakes would freeze solid, killing the life (during the summer only top would thaw) instead the floating ice insulates liquid water from below preventing it from freezing and killing animals14
7510768072solutionliquid completely homogeneous of two or more substances15
7510768073solventdissolving agent16
7510768074solutesubstance dissolved17
7510768075aqueous solutionwater is solvent18
7510768076hydration shellsphere of water molecules around dissolved ions19
7510768077hydrophobicwater hating substances20
7510768078hydrophilicwater loving substances21
7510768079molethe molecular weightof a substance expressed in grams (6.02 x 10^23)22
7510768080molarityconcentration measured by number of mols/liter of solution23
7510768081hydrogen ionH+24
7510768082hydroxide ionOH-25
7510768083hydronium ionH30+26
7510768084acidsincrease H+ concentration27
7510768085basesreduce H+ concentration28
7510768086pH scalemeasures concentration of H+ (scale from 1-14)29
7510768087bufferssubstance that minimizes changes in H+/OH- concentration30
7510768088acid precipitationpresence of sulfur oxides/nitrogen oxides and gaseous compounds react with air and goes into lakes, oceans, and soil, affecting animal life31

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